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Near-infrared laser proximity detector and detection method thereof

A detection method and near-infrared technology, applied in instruments, measurement devices, radio wave measurement systems, etc., can solve problems such as misjudgment by detection devices, resistance to cloud or smoke interference, etc.

Active Publication Date: 2013-10-23
西安天谛伟创探测技术有限公司
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Problems solved by technology

When the above-mentioned detection device is in an aerosol environment and the visibility decreases, the above-mentioned detection device will detect the backscattered echo signal caused by clouds or smog particles, resulting in misjudgment by the detection device
Therefore, none of the above detection devices can solve the interference problem of anti-cloud or smog in an aerosol environment.

Method used

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  • Near-infrared laser proximity detector and detection method thereof

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Embodiment

[0029] Such as figure 1 , figure 2 and image 3As shown, the near-infrared laser proximity detector of the present invention includes a housing 5, a laser emitting module 1, a laser receiving module 2, a signal processing module 3 and a power supply module 4, wherein the laser emitting module 1 includes an optical system 11. Near-infrared pulsed semiconductor laser emitter 12 and variable power laser emitting driver 13, the variable power laser emitting driver 13 can make the near-infrared pulse emitted by the near-infrared pulsed semiconductor emitter 12 be processed by the optical system 11 Finally, a pulsed light with variable pulse width and peak power is formed, and the pulsed light is the irradiation light source of the near-infrared laser proximity detector. The receiving module 2 includes a photoelectric cell and a preamplifier, wherein the photoelectric cell generally adopts a PIN silicon photoelectric cell to convert the received optical signal into an electrical ...

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Abstract

The invention relates to the field of laser detectors and discloses a near-infrared laser proximity detector and a detection method thereof. The near-infrared laser proximity detector in the invention includes a casing, laser transmitting modules, laser receiving modules, a signal processing module, a power module and an insert connection component. The power module is electrically connected with the transmitting modules, the laser receiving modules and the signal processing module respectively; the signal processing module and the power module are all arranged in the casing; near-infrared pulse semiconductor laser transmitters and the laser receiving modules are distributed uniformly at side faces of the casing; and the insert connection component is arranged at a top part of the casing. The near-infrared laser proximity detector of the invention is capable of reducing interferences from cloud and mist or smoke under an aerosol environment and the detection method of the near-infrared laser proximity detector of the invention has the characteristics of being simple and convenient to realize, high in detection efficiency and precise.

Description

technical field [0001] The invention relates to the field of laser proximity detection, in particular to a near-infrared laser proximity detector and a detection method thereof. Background technique [0002] At present, in the field of laser detection, the detection device made of near-infrared laser pulses generally emits a small peak power of near-infrared laser pulses, the peak power is below 100W, and the pulse width is also wide, above 10ns, including the emission module The detection device parallel to the main optical axis of the receiving module, the detection device whose main optical axis is not parallel to the transmitting module and the receiving module (except for the detection device whose optical path is in the form of a fork). When the detection device is in an aerosol environment and the visibility decreases, the detection device will detect backscattered echo signals caused by clouds or smog particles, thereby causing misjudgment by the detection device. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/02G01S7/48
Inventor 贺伟徐永超
Owner 西安天谛伟创探测技术有限公司
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